1 /*
2  * kmp_platform.h -- header for determining operating system and architecture
3  */
4 
5 //===----------------------------------------------------------------------===//
6 //
7 //                     The LLVM Compiler Infrastructure
8 //
9 // This file is dual licensed under the MIT and the University of Illinois Open
10 // Source Licenses. See LICENSE.txt for details.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef KMP_PLATFORM_H
15 #define KMP_PLATFORM_H
16 
17 /* ---------------------- Operating system recognition ------------------- */
18 
19 #define KMP_OS_LINUX    0
20 #define KMP_OS_FREEBSD  0
21 #define KMP_OS_NETBSD   0
22 #define KMP_OS_DARWIN   0
23 #define KMP_OS_WINDOWS  0
24 #define KMP_OS_CNK      0
25 #define KMP_OS_UNIX     0  /* disjunction of KMP_OS_LINUX, KMP_OS_DARWIN etc. */
26 
27 
28 #ifdef _WIN32
29 # undef KMP_OS_WINDOWS
30 # define KMP_OS_WINDOWS 1
31 #endif
32 
33 #if ( defined __APPLE__ && defined __MACH__ )
34 # undef KMP_OS_DARWIN
35 # define KMP_OS_DARWIN 1
36 #endif
37 
38 // in some ppc64 linux installations, only the second condition is met
39 #if ( defined __linux )
40 # undef KMP_OS_LINUX
41 # define KMP_OS_LINUX 1
42 #elif ( defined __linux__)
43 # undef KMP_OS_LINUX
44 # define KMP_OS_LINUX 1
45 #else
46 #endif
47 
48 #if ( defined __FreeBSD__ )
49 # undef KMP_OS_FREEBSD
50 # define KMP_OS_FREEBSD 1
51 #endif
52 
53 #if ( defined __NetBSD__ )
54 # undef KMP_OS_NETBSD
55 # define KMP_OS_NETBSD 1
56 #endif
57 
58 #if ( defined __bgq__ )
59 # undef KMP_OS_CNK
60 # define KMP_OS_CNK 1
61 #endif
62 
63 #if (1 != KMP_OS_LINUX + KMP_OS_FREEBSD + KMP_OS_NETBSD + KMP_OS_DARWIN + KMP_OS_WINDOWS)
64 # error Unknown OS
65 #endif
66 
67 #if KMP_OS_LINUX || KMP_OS_FREEBSD || KMP_OS_NETBSD || KMP_OS_DARWIN
68 # undef KMP_OS_UNIX
69 # define KMP_OS_UNIX 1
70 #endif
71 
72 /* ---------------------- Architecture recognition ------------------- */
73 
74 #define KMP_ARCH_X86        0
75 #define KMP_ARCH_X86_64     0
76 #define KMP_ARCH_AARCH64    0
77 #define KMP_ARCH_PPC64_BE   0
78 #define KMP_ARCH_PPC64_LE   0
79 #define KMP_ARCH_PPC64 (KMP_ARCH_PPC64_LE || KMP_ARCH_PPC64_BE)
80 #define KMP_ARCH_MIPS        0
81 #define KMP_ARCH_MIPS64      0
82 
83 #if KMP_OS_WINDOWS
84 # if defined _M_AMD64
85 #  undef KMP_ARCH_X86_64
86 #  define KMP_ARCH_X86_64 1
87 # else
88 #  undef KMP_ARCH_X86
89 #  define KMP_ARCH_X86 1
90 # endif
91 #endif
92 
93 #if KMP_OS_UNIX
94 # if defined __x86_64
95 #  undef KMP_ARCH_X86_64
96 #  define KMP_ARCH_X86_64 1
97 # elif defined __i386
98 #  undef KMP_ARCH_X86
99 #  define KMP_ARCH_X86 1
100 # elif defined __powerpc64__
101 #  if defined __LITTLE_ENDIAN__
102 #   undef KMP_ARCH_PPC64_LE
103 #   define KMP_ARCH_PPC64_LE 1
104 #  else
105 #   undef KMP_ARCH_PPC64_BE
106 #   define KMP_ARCH_PPC64_BE 1
107 #  endif
108 # elif defined __aarch64__
109 #  undef KMP_ARCH_AARCH64
110 #  define KMP_ARCH_AARCH64 1
111 # elif defined __mips__
112 #  if defined __mips64
113 #   undef KMP_ARCH_MIPS64
114 #   define KMP_ARCH_MIPS64 1
115 #  else
116 #   undef KMP_ARCH_MIPS
117 #   define KMP_ARCH_MIPS 1
118 #  endif
119 # endif
120 #endif
121 
122 #if defined(__ARM_ARCH_7__)   || defined(__ARM_ARCH_7R__)  || \
123     defined(__ARM_ARCH_7A__)
124 # define KMP_ARCH_ARMV7 1
125 #endif
126 
127 #if defined(KMP_ARCH_ARMV7)   || defined(__ARM_ARCH_6__)   || \
128     defined(__ARM_ARCH_6J__)  || defined(__ARM_ARCH_6K__)  || \
129     defined(__ARM_ARCH_6Z__)  || defined(__ARM_ARCH_6T2__) || \
130     defined(__ARM_ARCH_6ZK__)
131 # define KMP_ARCH_ARMV6 1
132 #endif
133 
134 #if defined(KMP_ARCH_ARMV6)   || defined(__ARM_ARCH_5T__)  || \
135     defined(__ARM_ARCH_5E__)  || defined(__ARM_ARCH_5TE__) || \
136     defined(__ARM_ARCH_5TEJ__)
137 # define KMP_ARCH_ARMV5 1
138 #endif
139 
140 #if defined(KMP_ARCH_ARMV5)   || defined(__ARM_ARCH_4__)   || \
141     defined(__ARM_ARCH_4T__)
142 # define KMP_ARCH_ARMV4 1
143 #endif
144 
145 #if defined(KMP_ARCH_ARMV4)   || defined(__ARM_ARCH_3__)   || \
146     defined(__ARM_ARCH_3M__)
147 # define KMP_ARCH_ARMV3 1
148 #endif
149 
150 #if defined(KMP_ARCH_ARMV3)   || defined(__ARM_ARCH_2__)
151 # define KMP_ARCH_ARMV2 1
152 #endif
153 
154 #if defined(KMP_ARCH_ARMV2)
155 # define KMP_ARCH_ARM 1
156 #endif
157 
158 #if defined(__MIC__) || defined(__MIC2__)
159 # define KMP_MIC  1
160 # if __MIC2__ || __KNC__
161 #  define KMP_MIC1 0
162 #  define KMP_MIC2 1
163 # else
164 #  define KMP_MIC1 1
165 #  define KMP_MIC2 0
166 # endif
167 #else
168 # define KMP_MIC  0
169 # define KMP_MIC1 0
170 # define KMP_MIC2 0
171 #endif
172 
173 /* Specify 32 bit architectures here */
174 #define KMP_32_BIT_ARCH (KMP_ARCH_X86 || KMP_ARCH_ARM || KMP_ARCH_MIPS)
175 
176 // TODO: Fixme - This is clever, but really fugly
177 #if (1 != KMP_ARCH_X86 + KMP_ARCH_X86_64 + KMP_ARCH_ARM + KMP_ARCH_PPC64 + KMP_ARCH_AARCH64 + KMP_ARCH_MIPS + KMP_ARCH_MIPS64)
178 # error Unknown or unsupported architecture
179 #endif
180 
181 #endif // KMP_PLATFORM_H
182